Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1978-06-19
1980-07-01
Rubinson, Gene Z.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
371 68, B66B 502
Patent
active
042102260
ABSTRACT:
An elevator control apparatus and stored program system comprises an auxiliary control device together with a main control device in which a control program is stored. In the normal state, the main control device is used whereas in a fault of the main control device, the auxiliary control device is actuated to control an elevator upon detecting the fault.
REFERENCES:
patent: 3786433 (1974-01-01), Notley et al.
patent: 3921149 (1975-11-01), Kreis et al.
patent: 4023109 (1977-05-01), Shreve
patent: 4049952 (1977-09-01), Forsslund
Duncanson Jr. W. E.
Mitsubishi Denki & Kabushiki Kaisha
Rubinson Gene Z.
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